Re: [PATCH v2 11/20] drm/msm/dp: Cache eDP link capabilities after successful discovery

[Burke Cates]

On 09-Oct-26 11:16, Xilin Wu wrote:
> Discover eDP capabilities from connector detect before the first
> modeset.

I tested this patch on its own (not the rest of the series) on an ASUS
Zenbook A16 (UX3607OA, Snapdragon X2 Elite), on v7.3 plus out-of-tree
Glymur platform/board patches, which include other msm DP changes.

Without it, msm chose the eDP output bpp before the panel's link caps
had been read, so the first modeset after boot ran the 2880x1800@120
OLED at 18 bpp until a DPMS off/on. With this patch the first modeset
after boot comes up at 24 bpp, 4 lanes at HBR2, with no link-training
retries, on two boots of two different builds.

Tested-by: Burke Cates <burke.cates@xxxxxxxxx> # ASUS Zenbook A16 (UX3607OA)

AI coding assistants helped run these tests and draft this reply; the
results are from the hardware runs.

Thanks,
Burke